Re: Define Music Function

[Mike Solomon]

On Aug 30, 2011, at 5:12 PM, address@hidden wrote:

> Hello Everyone,
> 
> I have been experimenting with music functions in Lilypond and defining
> new grobs/glyphs etc. I am wondering if someone can help me with this
> problem I am having. What I would like to create is a rest that looks like
> a big number that takes up the whole staff and then a fraction with a
> diagonal line separating the numerator and denominator directly next to
> it. So imagine a big "3 1/2" on the staff. Here is what I have for just
> creating the single big number:
> 
> numberRest = #(define-music-function (parser location string)
> (string-or-symbol?)
> #{
>  \once \override Staff.Rest #'font-size = #6
>  \once \override Staff.Rest #'Y-offset = #-2
>  \once \override Staff.Rest #'stencil = #ly:text-interface::print
>  \once \override Staff.Rest #'text = #(markup #:musicglyph $string)
>  \once \override Dots #'transparent = ##t
>  #}
> )
> 
> I can use that by doing the following code
> 
> \numberRest #"three" r2.
> 
> That works, and I am trying to adapt it for multiple variables and not
> having much luck, any suggestions?
> 
> fractionRest = #(define-music-function (parser location num denom)
> (string-or-symbol? string-or-symbol?)
> #{
>  \once \override Staff.Rest #'font-size = #3
>  \once \override Staff.Rest #'stencil = #ly:text-interface::print
>  \once \override Staff.Rest #'text = #(markup #:musicglyph $num)
>  \once \override Dots #'transparent = ##t
>  \once \override Staff.Rest #'font-size = #3
>  \once \override Staff.Rest #'stencil = #ly:text-interface::print
>  \once \override Staff.Rest #'text = #(markup #:musicglyph $denom)
>  \once \override Dots #'transparent = ##t
>   #}
> )
> 
> Thanks,
> Carl
> 


Hopefully this'll be enough to get you on the track to fractional-rests galore!

fractionRest = #(define-music-function (parser location num denom)
(string-or-symbol? string-or-symbol?)
#{
 \once \override Staff.Rest #'stencil = #ly:text-interface::print
 \once \override Staff.Rest #'text = #(markup #:fraction #:number $num #:number 
$denom)
 \once \override Dots #'transparent = ##t
  #})
{ \fractionRest #"4" #"3" r2. }

Cheers,
MS